ammonites
banner
Gateway to the Paleobiology Database

Gradstein Permian of West Texas

 Interval Maximum correlate   Minimum correlate
Leonard Kungurian

spelt "Leonardian"

Wolfcamp Asselian Artinskian

spelt "Wolfcampian"

Authorizer: J. Alroy   Enterer: J. Alroy

Continent: North America   Rank of each interval: age/stage

Basis of scale: paleontological  

Reference: F. M. Gradstein et al. 2004

Comments: Roadian, Wordian, and Capitanian omitted because they are international terms; Ochoan omitted because it is extremely short, follows these three stages, and is not used elsewhere in the system

View another time scale